If a 1.5V,3W torch light bulb is connected in series with a
15HP/11.19KW,230V single phase motor and the combination is
connected against a 230V supply and switched on than what
will happen keeping all other parameters as it should be
A)the bulb will glow normally B)the bulb will not glow C)the
bulb will glow with extra brightness D)the bulb will burn
out and if a fuse is connected to the above circuit will
something happen to the fuse and what about the single phase
motor will it be affected?
Please explain with derivation
Answer Posted / s.s.kothavale.
Normaly bulb will draw 2amp current. So you may use it as
2amp fuse in circuit. 15 hp motor will draw huge current
while starting, hence bulb will get fused instantly.
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